CN105204422B - Engine vacuumizes redundant automation TT＆C system and method - Google Patents
Engine vacuumizes redundant automation TT＆C system and method Download PDFInfo
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- CN105204422B CN105204422B CN201510617208.2A CN201510617208A CN105204422B CN 105204422 B CN105204422 B CN 105204422B CN 201510617208 A CN201510617208 A CN 201510617208A CN 105204422 B CN105204422 B CN 105204422B
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- program
- vacuumizes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/13—Plc programming
- G05B2219/13015—Semi automatic, manual automatic
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31088—Network communication between supervisor and cell, machine group
Abstract
The present invention proposes a kind of engine and vacuumizes redundant automation TT＆C system, including the optical transmitter and receiver being respectively provided between headend equipment with rear end power shelter being exchanged with each other, the interior optical transmitter and receiver of headend equipment is communicated with touch screen, the first measure and control device, the second measure and control device respectively, the first measure and control device and the second measure and control device connection signal adapter；Optical transmitter and receiver is communicated with the first observing and controlling host computer and the second observing and controlling host computer in the power shelter of rear end.Inventive engine vacuumizes redundant automation TT＆C system and method, and using double slave computers, more host computer observing and controlling one schemes, by remote control, reliability is high；With traditional measurement compared with controlling separating method, efficiency improves observing and controlling one scheme simultaneously.
Description
Technical field
The present invention relates to rockets to vacuumize redundant automation with oxygen kerosene engine art more particularly to a kind of engine
Investigating method.
Background technology
China's new rocket uses oxygen kerosene engine, and progress fuel cavity is needed to vacuumize and fill before the rocket launching.
It is required according to rocket launching, after the engine pumpdown time withdraws for personnel before rocket launching, by operator in rear end power side
It is controlled in cabin.To ensure that rocket smoothly emits, pumped vacuum systems must correctly work by node, at the appointed time will hair
Motivation fuel cavity pressure be evacuated to rated value it is the same below when keep the pressure to be no less than 1000s.
Currently, China's available engine vacuumizes investigating method is：Hand push button control vacuum pump, manually-operated gate control are drawn
Emitter two ways carries out vacuumizing experiment.It is poor using single equipment vacuumizing effect and stability, it is set when using redundancy technique
When standby, manual observing and controlling is easy by human interference.It is existing vacuumize investigating method all and be by cabling by hand push button into
Row vacuumizes experiment, and the degree of automation is low, and misuse rate is high, and flexibility is poor, and reliability is low.
Invention content
In order to solve the technical problem in the presence of background technology, the present invention propose a kind of engine vacuumize redundancy from
Dynamicization TT＆C system and method, using double slave computers, more host computer observing and controlling one schemes, by remote control, reliability is high；Simultaneously
With traditional measurement compared with controlling separating method, efficiency improves observing and controlling one scheme.
Technical solution of the invention is：Engine vacuumizes redundant automation TT＆C system, including be exchanged with each other
Be respectively provided between headend equipment and the optical transmitter and receiver of rear end power shelter, the interior optical transmitter and receiver of headend equipment respectively with touch screen, first
Measure and control device, the communication of the second measure and control device, the first measure and control device and the second measure and control device connection signal adapter；Rear end power side
Optical transmitter and receiver is communicated with the first observing and controlling host computer and the second observing and controlling host computer in cabin.
Above-mentioned signal adapter is separately connected pressure sensor, vacuum transducer, solenoid valve and close switch.
It is connected by optical fiber between above-mentioned optical transmitter and receiver；The interior optical transmitter and receiver of headend equipment and touch screen, the first measure and control device, the
It is connected by industrial cable between two measure and control devices；Optical transmitter and receiver and the first observing and controlling host computer and the second observing and controlling in the power shelter of rear end
Host computer is connected by industrial cable；First measure and control device and the second measure and control device are connected with signal adapter by movable cable
It connects.
Engine vacuumizes redundant automation investigating method, it is characterised in that：It the described method comprises the following steps：
1) distal end shelter sends program enabled instruction, and slave computer execution compiles the evacuation downloaded, opens in advance
Vacuum pump；The next machine controller reads in all input states and data, the wherein simulation in controller successively in a manner of scanning
It is 15 to measure acquisition module resolution ratio, and all data are stored in the response unit in I/O image areas；
2) Feedback Design is added in system, after vacuum pump is started to work 60 seconds, feeds back interpretation program into sensor values；
3) measurement value sensor is compared with setting value in real time, when 4 sensors have 3 be less than or equal to setting value after,
Interpretation condition is set up, and program carries out downwards automatically；
4) injector is opened, sends instructions to frequency converter and closes vacuum pump；
5) injector is automatically closed in program after 1000s, terminates to vacuumize.
Above-mentioned steps 2) feedback interpretation program detailed process be：4-20mA current signals are reached PLC's by four sensors
Analog input mModule, data by being reached the controller of PLC, the calibration that controller passes through sensor by the module after AD conversion
Coefficient converts the signal into corresponding pressure value.Four pressure values are compared with setting value in real time, when sensor values is more than setting
When value, vacuum pump works on, when 4 sensors have 3 be less than or equal to setting value after, stop vacuum pump open injection
Device.
Above-mentioned steps 1) in all input states be：Valve command signal, the valve of pumped vacuum systems, which return, surveys signal；Valve
It is on-off model (digital quantity signal) that command signal, which returns with valve and surveys signal, that is, it is 1 to open, and closing is 0.
Above-mentioned steps 1) evacuation is specifically：
1.1) it software initialization and carries out testing preceding systems inspection；
1.2) enter program flow diagram interface；
1.3) the first slave computer, option program control are controlled；
1.4) start acquisition and startup program, laggard line sensor judges within 60 seconds；
1.5) program starts injector, closes vacuum pump；
1.6) injector is closed after 1000s, vacuumizes end.
Above-mentioned steps 1.3) if when controlling the first slave computer failure, it carries out step 1.7) and is switched to the second slave computer,
Option program controls；
1.8) start acquisition and startup program, laggard line sensor judges within 60 seconds；
1.9) program starts injector, closes vacuum pump；
1.10) injector is closed after 1000s, vacuumizes end.
The beneficial effects of the invention are as follows：Frequency converter is controlled by program, slowly starts or close pump, is effectively reduced high-power
The electromagnetic interference that equipment start-stop is brought；According to injector operation principle, the difference of valve sequence when open and close, using program
Design protection, it is possible to reduce the maloperation problem that conventional method is artificially brought；When an emergency situation is encountered for pumped vacuum systems, need
When closing all devices, click " emergency off push-button " all process equipments of quick closedown, this method ratio can pass in order
System method is reduced under vacuum state, malfunctions the equipment damage brought.
After system is built up, multiple debugging is passed through and has participated in multiple engine and vacuumized and kerosene filling experiment, has obtained
More comprehensively and accurately data have the advantage that with traditional vacuum pumping method：1) redundancy slave computer observing and controlling is applied to for the first time and is started
It is high that machine vacuumizes reliability in experiment；2) automatic feedback design effectively liberation manpower is used, is improved work efficiency and experiment
Accuracy；3) multistation point design is used, close, far distance controlled may be implemented；4) safety Design enhances the peace of process equipment
For the national games turn, ensure life and property safety.
Description of the drawings
Fig. 1 is that the present invention vacuumizes TT＆C system schematic diagram；
Fig. 2 be the present invention vacuumize control flow chart；
Fig. 3 is that pumped vacuum systems of the present invention automatically controls sequence diagram；
Fig. 4 is process of feedback figure of the present invention；
Fig. 5 is the emergency cut-off sequence diagram of the present invention；
Fig. 6 is the network communication system figure of the present invention；
Fig. 7 is auto-programming flow diagram of the present invention.
Specific implementation mode
The present invention proposes that a kind of engine vacuumizes redundant automation TT＆C system：
1.1】Hardware system
Observing and controlling hardware system is mainly by observing and controlling host computer, optical transmitter and receiver, measure and control device (slave computer), signal adapter, sensing
The compositions such as device and communication cable.
A) measure and control device uses molded breadth temperature series of PLC (MicroLogix1400) controller 1766- two small
L32BWAA and its expansion module are mainly responsible for measuring and control data acquisition, channel control, ultrahigh speed timer counter and data operation etc.
Function.
B) host computer and touch screen central control station use industrial control computer, notebook and 10 cun of touch screens, pass through
Ethernet standard Local Area Networt Communication Protocols realize control solenoid valve, monitoring network switch port operating status, real time data
Acquisition the functions such as shows with deposit and technological process.
C) optical transmitter and receiver uses redundancy industrial ethernet communication mode, has two-way single mode optical interface, passes through single mode optical fiber and net
The data exchange of host computer, touch screen and slave computer is completed in line connection.
D) signal converting case mainly completes pumped vacuum systems solenoid valve control cable, valve position detection cable and sensor cable
Signal inputs and the functions such as output, all DC power supply operation instructions of front end observing and controlling cabinet.
1.2】Software systems
Software systems are made of TT＆C software and data processing software.The next machine controller is developed using RSLogix 500
Environment, host computer and touch screen are based on FactoryTalk View Studio Configuration Design environment exploitations, wherein host computer button
It is write by configuration virtual push button, a key function button is developed by embedded VBA, and network communication is run based on RSLinx environment,
Data processing software is write by VB.net language.
2】Pumped vacuum systems workflow
Rocket ground pumped vacuum systems is using vacuum pump forvacuum, vacuum induction apparatus relay operating mode.Emitting
Before, vacuum pump is started by host computer in the power shelter of rear end first, after engine fuel chamber is evacuated to rated value, is started true
Empty induction apparatus continues injection to stage body pipeline and engine fuel chamber, closes vacuum pump, is maintained at less than specified vacuum degree 1000s
Afterwards, injector is closed.
3】Particular technique explanation
Fig. 2 is pumped vacuum systems software control flow chart, and wherein solid black lines are automatic decision program.
3.1 pairs of slave computer redundancy observing and controlling
System is acquired while being sent simultaneously using double slave computer hot backup redundancy work, sensor signal, and control signal is by one
Platform controller is sent, and when the controller fails, host computer shows communication failure, is manually switched to another slave computer and is continued
Work.
Redundant Control is applied to rocket engine pumped vacuum systems and belongs to the country for the first time, reliability is high.Observing and controlling one simultaneously
With traditional measurement compared with controlling separating method, efficiency improves body scheme.
3.2 automatic feedback observing and controlling design
Evacuation process system is made of distribution platform, injector group, vacuum pump, kerosene collection vessel etc., for the first time by program
Control is applied to engine and vacuumizes in experiment, is taken out in advance using vacuum pump, vacuum induction apparatus relay operating mode, changes tradition
, cannot work long hours the problem of low using single equipment reliability.
Using PLC technology, vacuum automation, one-key start, automatic collection, automatic interpretation are realized.System is by hard
Part circuit chronologically completes beating for all solenoid valves, vacuum pump etc. and closes action, and pumped vacuum systems automatically controls sequential and sees Fig. 4.
Feedback Design is added in system, after vacuum pump is started to work 60 seconds, feeds back interpretation program, sensor into sensor values
Measured value is compared with setting value in real time, when 4 sensors have 3 be less than or equal to setting value after, interpretation condition set up, program
It is automatic to carry out downwards, injector is opened, sends instructions to frequency converter and closes vacuum pump.The next machine controller in a manner of scanning according to
Secondary to read in all input states and data, wherein sensor acquisition module resolution ratio is 15, and all data are stored in I/O and are reflected
It as in the response unit in area, then executes and compiles the evacuation downloaded in advance, sensor values and setting value carry out pair
Than after interpretation is set up, finally subsequent action can be carried out according to output state.
Using automatic feedback control by each single equipment sequencing, artificial maloperation is avoided；Modification of program is flexible, Ke Yiying
Experiment is vacuumized with various model engines；Automatic feedback control is improved in first Application to engine pumped vacuum systems
The degree of automation of experiment avoids artificial interpretation not in time, inaccurate problem.
3.3 distributed observation and control technologies
System utilizes distributed computing technology, using double slave computers and more host computer observing and controlling one schemes, realizes two slave computers
Redundant Control acquires simultaneously, and more host computers can carry out system state monitoring, manually/program control, process of feedback monitoring,
Solve front and back ends can independent observing and controlling, the problem of separate unit controller failure, improve the flexibility of control, system it is reliable
Property.
It is aobvious in real time that host computer central control station using double separate threads carries out being locally stored of data, Redundant Control and scene
Show, two slave computers are in hot standby state when system works, and signal transmission is assisted using the full duplex communication of 10Mbps/100Mbps
View, avoids the repetition of common message, and two network nodes can improve handling up for data with simultaneous transmission and reception data
Amount.When normal work, control instruction is sent out by a slave computer, and host computer records two sensors signal in real time, valve is returned and surveyed
Signal, using real-time read-write, two groups of data backup each other, and improve the integrality of data.
Touch screen is equipped between headend equipment, touch screen uses point under FactoryTalk View Studio development environments
Cloth HMI configuration functions, distal end shelter be equipped with host computer, using local Site Edition configuration functions, slave computer with it is upper
Machine establishes distributed local by RS claassic, sees Fig. 6.Wherein, touch screen carries out data friendship by HMI servers
It changing, host computer runs local application, which may operate in LAN on different computers, all valve switch,
Program switch adopted value controls, i.e., arbitrary host computer sends out control instruction, all equal simultaneous displays of host computer.
Claims (5)
1. engine vacuumizes redundant automation investigating method, it is characterised in that：It the described method comprises the following steps：
1) distal end shelter sends program enabled instruction, and slave computer execution compiles the evacuation downloaded, opens vacuum in advance
Pump；The next machine controller reads in all input states and data successively in a manner of scanning, and the wherein analog quantity in controller is adopted
It is 15 to collect module resolution, and all data are stored in the response unit in I/O image areas；
2) Feedback Design is added in system, after vacuum pump is started to work 60 seconds, feeds back interpretation program into sensor values；
3) measurement value sensor is compared with setting value in real time, when 4 sensors have 3 be less than or equal to setting value after, interpretation
Condition is set up, and program carries out downwards automatically；
4) injector is opened, sends instructions to frequency converter and closes vacuum pump；
5) injector is automatically closed in program after 1000s, terminates to vacuumize.
2. engine according to claim 1 vacuumizes redundant automation investigating method, it is characterised in that：The step 2)
Feeding back interpretation program detailed process is：4-20mA current signals are reached the Analog input mModule of PLC by four sensors, the mould
By the way that data to reach to the controller of PLC after AD conversion, controller is converted the signal into pair block by the calibration factor of sensor
Pressure value is answered, four pressure values are compared with setting value in real time, and when sensor values is greater than the set value, vacuum pump continues work
Make, when 4 sensors have 3 be less than or equal to setting value after, stop vacuum pump open injector.
3. engine according to claim 2 vacuumizes redundant automation investigating method, it is characterised in that：The step 1)
In all input states be：Valve command signal, the valve of pumped vacuum systems, which return, surveys signal；Valve command signal is returned with valve and is surveyed
Signal is on-off model (digital quantity signal), that is, it is 1 to open, and closing is 0.
4. engine according to claim 3 vacuumizes redundant automation investigating method, it is characterised in that：The step 1)
Evacuation is specifically：
1.1) it software initialization and carries out testing preceding systems inspection；
1.2) enter program flow diagram interface；
1.3) the first slave computer, option program control are controlled；
1.4) start acquisition and startup program, laggard line sensor judges within 60 seconds；
1.5) program starts injector, closes vacuum pump；
1.6) injector is closed after 1000s, vacuumizes end.
5. engine according to claim 4 vacuumizes redundant automation investigating method, it is characterised in that：The step
If 1.3) when controlling the first slave computer failure, carries out step 1.7) and be switched to the second slave computer, option program control；
1.8) start acquisition and startup program, laggard line sensor judges within 60 seconds；
1.9) program starts injector, closes vacuum pump；
1.10) injector is closed after 1000s, vacuumizes end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510617208.2A CN105204422B (en) | 2015-09-24 | 2015-09-24 | Engine vacuumizes redundant automation TT＆C system and method |
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| CN201510617208.2A CN105204422B (en) | 2015-09-24 | 2015-09-24 | Engine vacuumizes redundant automation TT＆C system and method |
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| Publication Number | Publication Date |
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| CN105204422A CN105204422A (en) | 2015-12-30 |
| CN105204422B true CN105204422B (en) | 2018-09-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109687943B (en) * | 2018-10-11 | 2021-10-12 | 中国人民解放军海军陆战队训练基地 | Dual-computer backup redundancy control system |
| CN112034798B (en) * | 2020-08-25 | 2022-04-29 | 三一汽车制造有限公司 | Control system and control method |
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| CN102914436A (en) * | 2012-11-08 | 2013-02-06 | 中国人民解放军军事交通学院 | Plateau performance simulation test system for engine oxygen-enriched combustion-supporting device |
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